October 2018 2 12 Report

Zredukuj w podany wyrazy podobne . Oblicz wartość liczbową tego wyrażenia. a) x+x+x+x+x dla x=-2 b) x+y+y+z+x+z+x+z+x dla x=3,y+2,z=1 c) a+b+2c+2a+3b+4b+3a+3c dla a=0,5,b=4,c=0,1 d)4x+2y+2-3z-2y+3y+7z+4 dla x=1\2,y=1\5,z=1\4


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